package io;

import java.io.File;

public class demoIO5 {
    public static void main(String[] args) {
        File dir = new File("dir");
        System.out.println(dir.isFile());
        System.out.println(dir.isDirectory());
        System.out.println(dir.mkdir());
        System.out.println(dir.isDirectory());
        System.out.println(dir.isFile());

    }
}
